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GIS是以什么作为绝缘和灭弧介质？

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交联密度（），橡胶分子链段活动较易，伸长过程中易于取向结晶，拉伸强度达到最大值。

A. 太小
B. 太大
C. 适宜
D. 以上说法均不对

Following the failure of one turbocharger on a large, crosshead, main propulsion diesel engine, fitted with multiple turbochargers, which of the following actions should be taken prior to further operation of the engine? （）

A. Blank off the exhaust gas inlet to the damaged turbocharger
B. Secure cooling and lubrication to the damaged turbocharger
C. Lock the rotor of the damaged turbocharger
D. All of the above

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何谓异嗜性抗原？何谓同种异型抗原？

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